Steak-whistle



0. NEWS. I STEAM WHISTLE.

APPLICATION FILED AUG.2B, I915.

- INVENTOR. DOUGLAS EHEWS.

WITNESSES.-

&4 Pu-cm A TTORNE YS.

40 I ing 3 and which is provided with a stem 4 STA-TEES PATENT OFFICE.

DOUGLAS BREWS, F CLEVELAND, OHIO.

STEAM-WHISTLE.

To all whom it may concern:

Be it known that I, DOUGLAS BREWS, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Steam-Whistles, of which the following is a specification.

This invention pertains to an improvement in steam whistles adapted more especially fo use on steam driven vessels, but not limited thereto, all' substantially as shown and described and particularly pointed out in the claim. j

In the accompanying drawings, Figure 1 is a side elevation of a boat or vessel on which theinvention is installed, andFig. '2

is aside elevation, more or less diagrammatic, of the invention apart from the vessel. Fig. 3 isan enlarged sectional elevation of the. plunger and cylinder therefor through which the whistle proper is operated," as hereinafter fully. set forth;

The modern steam propelled vessel has grown to be of what may be termed such extreme length as compared with vessels built a decade or more ago, that the old installation which employed a wire running from the front of the vessel to the rear for the purpose of operating the steamfwhistle is no longer regarded as either reliable nor desirable, owing chiefly, to the inefiectiveness of wire as a positive operating medium in vessels of the present length and type. I

To these ends the present invention is developed on. strictly fluid actuating lines and comprises a whistle W at one end of the vessel and adapted to be blown by steam issuing through pipe 2'from the boiler or other source of supply and having a balanced valve of common structure in the cascontrolled by a lever 5. pivotally mounted on said casing and adapted, when actuated, to ress against said valve stem and open sai valve. Otherwise the valve isclosed by the usual spring behind the same.

The lever 5 is operated by a link- 6 and an evener 7 having a bifurcated or yoke shaped portion engaged by the hangers 8 pivotally suspended from the top of the plunger or piston 9 working in the cylinder 10. The said plunger is adapted to reciprocats in said cylinder sufliciently to operate the said valve through the mechanism justdescribed, and a fluid supply pipe 12 connects Specification of Letters Ilatent. I

Patented Aug. 19, 1919.

Application filed August 28, 1915. Serial m. 47,747.

i with the bottom of said cylinder 10 and is in open fluid actuating connection from the front of the boat to operate said plunger and the valve actuatinr mechanism as described.

Means are provided at the front of the boat to control the said plunger or piston 9 .and the said valve, consisting in hand controlled pumps P and P in open communication with the said pipe 12 and adapted to be placed in such position on the bridge and in the cabin, respectively, as convenience may suggest. A water or liquid reservoir or tank 15 serves as a water supply for the systemtand is intended to be kept more or less a completely filled and has a cap with a vent for escape of air. A check valve 16 is pro-' vided in the pipe which connects said tank with the said pumps so that water can flow past'said valve intosaid pumps butcannot be forced back into the tank, thus keeping said pumps and the pipes therefrom to the pipes being solid,

in a sense, or inelastic, the operation of.

either of the two pumps P or P will be instantl communicated through the pipe 12 to the p linger 9 and cause the said plunger to rise in proportion to the stroke of the pump which, in any event, is presumed to be sufficient'to open the whistle valve and cause the whistle to blow. Pipe 12 is open to both the pumps]? and P through the pipes 24 and 25 connected therewith respectively.

. The plunger 9 has a small vent passage m through the same lengthwise which is closed by a plug n at the top.

Suitable mechanical proportions are sup-v keeping in view the work to be done, and the comparatively long distances between the parts at the respective ends of the vessel.

However, I have found that a half inch pipe 12. is large enough for distance service, and a three-fourths inch plunger. So it will be seen that an effective installation can'be posed to be observed throughout the system up 2 I I maaei a made at comparatively small expense and and means at the other end of said evener" with assured operation. operatively-connected with said device. 10 What I claim is: t In testimony whereof I afiix my signature A signaling device and means to operate in. presence of two witnesses. 5 the same comprising a fluid actuated plun-. DOUGLAS BREWS.

ger having an exposed end and a hanger Witnesses: 4 engaged with said end, an evener having Gno. E. KRICKER, said hanger engaged with one end thereof H. T. FISHER. V 

